JP2009194536A - Document reading apparatus and image forming apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a document from being left behind by performing reading of the document and reading of a wireless IC tag on a display screen of an operation panel, and to make it possible to use an electronic money function using a wireless IC tag. <P>SOLUTION: This document reading apparatus includes an integral display portion 401 integrally provided with an area sensor portion 401b and a wireless IC tag reader 401c, and a main CPU 101 for detecting by the area sensor portion 401b reflection light from an object placed on a screen of the integral display portion 401 and detecting by the wireless IC ttn. When it is determined that the object is a document based on an area of reflection light from the object, the main CPU 101 switches to a document reading mode for reading the document on the screen by the area sensor portion 401b, and when it is detected that a wireless IC tag comes close to the screen, the main CPU 101 switches to a wireless IC tag reading mode for reading electronic money information of the wireless IC tag by the wireless IC tag reader 401c. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an original reading apparatus and an image forming apparatus, and more particularly to an original reading apparatus having a function of reading an original on a display screen such as a liquid crystal panel and an image forming apparatus including the original reading apparatus.

  In recent years, digital multifunction peripherals (MFPs) having a plurality of functions such as a copy function, a printer function, a facsimile function, and a scanner function have become widespread. This MFP is provided with a large original platen so that it can read originals up to A3 size. When the user tries to copy with this MFP, the document cover is closed with the document set on the document table, and scanning is executed.

  At this time, if the document cover is closed, the document is hidden and the user cannot see the document. For this reason, the user may accidentally forget to take a document set on the document table after obtaining a copy. In particular, when copying a relatively small document such as a driver's license, business card, L-size photo, etc., it is often forgotten that the existence is not noticed.

  Incidentally, an input display in which a relatively small liquid crystal panel is provided with a reading function for reading a document placed on the screen in addition to a conventional display function for displaying image data on the screen has attracted attention (for example, patents). Reference 1). By mounting this input display on a portable terminal such as a PDA, a card-size document can be easily read and captured. Note that an area sensor is usually used for the input display. Since the area sensor captures an image of a subject as an electric signal by a photoelectric conversion element provided on a plane, unlike the line sensor, it is not necessary to scan the photoelectric conversion element, and a motor for scanning is not necessary.

Japanese Patent Application Laid-Open No. H10-228688 describes a device in which IC tag information is read and displayed by a wireless IC tag reader provided integrally with a display unit of a personal computer. Such wireless IC tag technology is also applied to an MFP. For example, a system is known in which a wireless IC tag reader is provided in an MFP and a copy fee can be paid by electronic money using the wireless IC tag. Yes.
JP 2006-179977 A JP 2002-204239 A

  The operation unit of the MFP usually has a liquid crystal display unit with a touch panel, and this part is a place where the user directly operates, so it can be said that it is the most visible place for the user. If the above-described reading function is provided in the liquid crystal display unit, it is possible to read and take in a relatively small document such as a license. In this case, since it is not necessary to set the document on the document table one by one, the document can be easily read, and furthermore, the liquid crystal display unit is the most visible place for the user, thereby preventing the document from being forgotten. be able to.

  Furthermore, when an MFP is to be used with an IC card or a mobile phone having an electronic money function using a wireless IC tag, a wireless IC tag reader is provided on the liquid crystal display unit of the MFP, and a wireless IC tag storing electronic money information is provided. You can make payments such as copying fees just by bringing them close together. In this case, the user can perform operation input, document reading, and wireless IC tag reading from the liquid crystal display unit of the MFP, and a plurality of different functions can be executed only by the liquid crystal display unit, improving operability. I can expect.

However, in the technique of Patent Document 1, since it has not been considered to use an input display in combination with an MFP, it is impossible to read a document on the liquid crystal display unit of the MFP.
Further, in the technology of Patent Document 2, it has not been considered to incorporate a wireless IC tag reader into a liquid crystal display unit of an MFP, so that the wireless IC tag cannot be read by the liquid crystal display unit of the MFP.
In addition, in order to perform document reading and wireless IC tag reading on the liquid crystal display unit of the MFP, it is necessary to switch the liquid crystal display unit appropriately between the document reading mode and the wireless IC tag reading mode. It was not possible to switch.

  The present invention has been made in view of the above-described circumstances. By reading a document and reading a wireless IC tag on a display screen of an operation panel, it is possible to prevent the user from forgetting to remove a document and to scan a document. And the wireless IC tag reading mode are automatically switched so that an electronic money function or the like by the wireless IC tag can be used.

  In order to solve the above problems, a first technical means of the present invention is a display unit integrally provided with an area sensor and a wireless IC tag reader, and is placed on the screen of the display unit by the area sensor. A control unit that detects reflected light from an object and detects that the wireless IC tag is close to the screen by the wireless IC tag reader, and the control unit has the wireless IC tag close to the screen. When this is detected, the wireless IC tag reader switches to a wireless IC tag reading mode in which information of the wireless IC tag is read.

  According to a second technical means, in the first technical means, when the control unit determines that the target object is a document based on a region of reflected light from the target object, the area sensor displays the target on the screen. When it is possible to switch to a document reading mode for reading a placed document, the object is determined to be a document, and it is detected that the wireless IC tag is close to the screen, the switching to the document reading mode is performed. Prohibit and switch to the wireless IC tag reading mode.

  The third technical means performs charging processing based on the electronic money information read by the wireless IC tag reader when the information of the wireless IC tag is electronic money information in the first or second technical means. It is characterized by that.

  According to a fourth technical means, in the third technical means, the document reading apparatus is connected to an image forming apparatus, and charge processing using the image forming apparatus is performed by the electronic money information. It is a thing.

  According to a fifth technical means, in the third technical means, the document reading apparatus is connected to an image forming apparatus and a coin-type charging device, and the charge processing of the cost using the image forming apparatus is performed with the coin-type charging. This is performed by either the device or the electronic money information.

  According to a sixth technical means, in the third technical means, when the wireless IC tag has a plurality of pieces of electronic money information, the control unit determines whether the wireless IC tag is placed on the screen. , One of the plurality of pieces of electronic money information is selected.

  A seventh technical means is the first or second technical means, wherein the control unit determines whether or not the target object is a user's finger based on a region of reflected light from the target object. When it is determined that the finger is a finger, the area sensor is switched to a user operation mode in which a user operation is accepted.

  According to an eighth technical means, in the first or second technical means, the control unit displays a reading area for reading a document and an operation key of the document reading device on the screen of the display unit. The operation area is set.

  A ninth technical means includes an operation area for displaying an operation key of the document reading device on the screen of the display unit in the first or second technical means, and the control unit includes the target When the object is determined to be a document, a region other than the region where the document is placed is set as the operation region.

  According to a tenth technical means, in the eighth or ninth technical means, the control section determines whether or not to switch to an aggregation mode for consolidating a plurality of documents on one page in the operation area of the document reading device. An operation key for confirmation is displayed.

  An eleventh technical means according to the eighth or ninth technical means is characterized in that the control unit displays a preview image of the original in the operation area of the original reading apparatus.

  A twelfth technical means is an image forming apparatus provided with the document reading device in any one of the first to eleventh technical means.

According to the present invention, since the original can be read on the display screen of the operation panel using the area sensor, it is not necessary to set the original on the original table, and the forgetting to remove the original can be prevented. Furthermore, since the wireless IC tag reader can detect that the wireless IC tag is close to the display screen, it automatically switches between the document reading mode and the wireless IC tag reading mode to easily use the electronic money function by the wireless IC tag. can do.
In addition, the user can perform operation input, document reading, and wireless IC tag reading from the liquid crystal display unit of the MFP, and a plurality of different functions can be executed only by the liquid crystal display unit. Can be planned.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of a document reading device and an image forming apparatus including the document reading device according to the invention will be described with reference to the accompanying drawings.

FIG. 1 is a diagram illustrating a configuration example of an image forming apparatus according to an embodiment of the present invention. In FIG. 1, reference numeral 100 denotes an image forming apparatus. The image forming apparatus 100 forms multicolor and single color images on a predetermined sheet (recording paper) in accordance with image data transmitted from the outside. The image forming apparatus 100 includes an apparatus main body 110 and an automatic document processing apparatus 120. It is comprised by.
The apparatus main body 110 includes an exposure unit 1, a developing device 2, a photosensitive drum 3, a cleaner unit 4, a charger 5, an intermediate transfer belt unit 6, a fixing unit 7, a paper feed cassette 81, a paper discharge tray 91, and the like. Configured.

  A document placing table 92 made of transparent glass on which a document is placed is provided on the upper part of the apparatus main body 110, and an automatic document processing device 120 is attached to the upper side of the document placing table 92. The automatic document processing device 120 automatically conveys the document on the document placing table 92. The automatic document processing device 120 is configured to be rotatable in the direction of arrow M, and the document can be manually placed by opening the document table 92.

  Image data handled in the image forming apparatus 100 corresponds to a color image using each color of black (K), cyan (C), magenta (M), and yellow (Y). Accordingly, four developing units 2, photosensitive drums 3, charging units 5, and cleaner units 4 are provided to form four types of latent images corresponding to the respective colors, and are respectively black, cyan, magenta, and yellow. These constitute four image stations.

  The charger 5 is a charging means for uniformly charging the surface of the photosensitive drum 3 to a predetermined potential. In addition to the charger type as shown in FIG. 1, a contact type roller type or brush type charger is used. Sometimes used.

  The exposure unit 1 is configured as a laser scanning unit (LSU) provided with a laser emitting portion, a reflection mirror, and the like. The exposure unit 1 includes a polygon mirror that scans a laser beam and optical elements such as a lens and a mirror for guiding the laser beam reflected by the polygon mirror to the photosensitive drum 3. The configuration of the optical scanning device constituting the exposure unit 1 will be specifically described later. As the exposure unit 1, for example, a technique using an EL or LED writing head in which other light emitting elements are arranged in an array can be employed.

  The exposure unit 1 has a function of forming an electrostatic latent image corresponding to the image data on the surface thereof by exposing the charged photosensitive drum 3 according to the input image data. The developing unit 2 visualizes the electrostatic latent images formed on the respective photosensitive drums 3 with toner of four colors (YMCK). The cleaner unit 4 removes and collects toner remaining on the surface of the photosensitive drum 3 after development and image transfer.

The intermediate transfer belt unit 6 disposed above the photosensitive drum 3 includes an intermediate transfer belt 61, an intermediate transfer belt driving roller 62, an intermediate transfer belt driven roller 63, an intermediate transfer roller 64, and an intermediate transfer belt cleaning unit 65. I have. Four intermediate transfer rollers 64 are provided corresponding to each color for YMCK.
The intermediate transfer belt driving roller 62, the intermediate transfer belt driven roller 63, and the intermediate transfer roller 64 are driven to rotate while the intermediate transfer belt 61 is stretched. Each intermediate transfer roller 64 provides a transfer bias for transferring the toner image on the photosensitive drum 3 onto the intermediate transfer belt 61.
The intermediate transfer belt 61 is provided so as to be in contact with each photoconductor drum 3, and the toner images of the respective colors formed on the photoconductor drum 3 are sequentially transferred to the intermediate transfer belt 61 and transferred. Further, it has a function of forming a color toner image (multicolor toner image) on the intermediate transfer belt 61. The intermediate transfer belt 61 is formed in an endless shape using, for example, a film having a thickness of about 100 μm to 150 μm.

  Transfer of the toner image from the photosensitive drum 3 to the intermediate transfer belt 61 is performed by an intermediate transfer roller 64 that is in contact with the back side of the intermediate transfer belt 61. A high-voltage transfer bias (a high voltage having a polarity (+) opposite to the toner charging polarity (−)) is applied to the intermediate transfer roller 64 in order to transfer the toner image. The intermediate transfer roller 64 is a roller whose base is a metal (for example, stainless steel) shaft having a diameter of 8 to 10 mm and whose surface is covered with a conductive elastic material (for example, EPDM, urethane foam, or the like). With this conductive elastic material, a high voltage can be uniformly applied to the intermediate transfer belt 61. In this embodiment, a roller shape is used as the transfer electrode, but a brush or the like can also be used.

  As described above, the electrostatic images visualized according to the respective hues on the respective photosensitive drums 3 are laminated on the intermediate transfer belt 61. As described above, the laminated image information is transferred onto the sheet by the transfer roller 10 disposed at a contact position between the sheet and the intermediate transfer belt 61 described later by the rotation of the intermediate transfer belt 61.

  At this time, the intermediate transfer belt 61 and the transfer roller 10 are pressed against each other at a predetermined nip, and a voltage for transferring the toner onto the sheet is applied to the transfer roller 10 (the polarity opposite to the toner charging polarity (−)). (+) High voltage). Furthermore, in order to obtain the above nip constantly, the transfer roller 10 uses either the transfer roller 10 or the intermediate transfer belt drive roller 62 as a hard material (metal or the like) and the other as a soft material such as an elastic roller (an elastic rubber roller). Or a foaming resin roller or the like).

  Further, as described above, the toner attached to the intermediate transfer belt 61 by contacting the photosensitive drum 3 or the toner remaining on the intermediate transfer belt 61 without being transferred onto the sheet by the transfer roller 10 is used in the next step. Therefore, the intermediate transfer belt cleaning unit 65 is configured to remove and collect the toner. The intermediate transfer belt cleaning unit 65 includes a cleaning blade as a cleaning member that comes into contact with the intermediate transfer belt 61. The intermediate transfer belt 61 that comes into contact with the cleaning blade is supported by an intermediate transfer belt driven roller 63 from the back side. ing.

  The paper feed cassette 81 is a tray for storing sheets (recording paper) used for image formation, and is provided below the exposure unit 1 of the apparatus main body 110. A sheet used for image formation can also be placed in the manual paper feed cassette 82. A paper discharge tray 91 provided above the apparatus main body 110 is a tray for collecting printed sheets face down.

  Further, the apparatus main body 110 has a substantially vertical sheet conveyance path S for feeding the sheets of the sheet feeding cassette 81 and the manual sheet feeding cassette 82 to the sheet discharge tray 91 via the transfer roller 10 and the fixing unit 7. Is provided. In the vicinity of the paper transport path S from the paper feed cassette 81 or the manual paper feed cassette 82 to the paper discharge tray 91, pickup rollers 11a and 11b, a plurality of transport rollers 12a to 12d, a registration roller 13, a transfer roller 10, and a fixing unit. 7 etc. are arranged.

  The conveyance rollers 12 a to 12 d are small rollers for promoting and assisting conveyance of the sheet, and a plurality of conveyance rollers 12 a to 12 d are provided along the sheet conveyance path S. The pickup roller 11 a is provided near the end of the paper feed cassette 81, picks up sheets one by one from the paper feed cassette 81, and supplies them to the paper transport path S. Similarly, the pickup roller 11 b is provided near the end of the manual paper feed cassette 82, picks up one sheet at a time from the manual paper feed cassette 82, and supplies it to the paper transport path S.

  Further, the registration roller 13 temporarily holds the sheet being conveyed through the sheet conveyance path S. The sheet has a function of conveying the sheet to the transfer roller 10 at the timing when the leading edge of the toner image on the photosensitive drum 3 and the leading edge of the sheet are aligned.

  The fixing unit 7 includes a heat roller 71 and a pressure roller 72, and the heat roller 71 and the pressure roller 72 rotate with the sheet interposed therebetween. The heat roller 71 is set so as to reach a predetermined fixing temperature by a control unit based on a signal from a temperature detector (not shown), and the toner is thermocompression bonded to the sheet together with the pressure roller 72. It has the function of fusing, mixing, and pressing the transferred multicolor toner image and thermally fixing the sheet. Further, an external heating belt 73 for heating the heat roller 71 from the outside is provided.

Next, the sheet conveyance path will be described in detail. As described above, the image forming apparatus 100 is provided with the paper feed cassette 81 for storing sheets and the manual paper feed cassette 82 in advance. Pickup rollers 11a and 11b are arranged to feed sheets from the sheet feeding cassettes 81 and 82, respectively, and guide the sheets one by one to the conveyance path S.
The sheet conveyed from each of the sheet feeding cassettes 81 and 82 is conveyed to the registration roller 13 by the conveying roller 12a in the sheet conveying path S, and the transfer roller is aligned at a timing when the leading edge of the sheet and the leading edge of the image information on the intermediate transfer belt 61 are aligned. 10 and image information is written on the sheet. Thereafter, the sheet passes through the fixing unit 7, whereby the unfixed toner on the sheet is melted and fixed by heat, and then discharged onto the paper discharge tray 91 through the conveying roller 12 b disposed thereafter.

  The above-described conveyance path is used when a single-sided printing request is made on a sheet. On the other hand, when a double-sided printing request is made, the single-sided printing is finished and the trailing edge of the sheet that has passed through the fixing unit 7 is When the sheet is held by the final conveying roller 12b, the conveying roller 12b rotates backward to guide the sheet to the conveying rollers 12c and 12d. Then, after printing is performed on the back surface of the sheet through the registration roller 13, the sheet is discharged to the discharge tray 91.

  FIG. 2 is a block diagram illustrating a configuration example of the image forming apparatus 100 illustrated in FIG. In the figure, an image forming apparatus 100 includes a main CPU 101 corresponding to a control unit of the present invention. The main CPU 101 is connected to an image processing unit 102, ROM 103, RAM 104, image memory 105, NIC 106, operation panel 400, sub CPU 203, and sub CPU 303. The document reading apparatus according to the present invention includes the main CPU 101 and the integrated display unit 401 provided in the operation panel 400.

  The main CPU 101 controls each input / output device according to a program written in the ROM 103 in advance, and temporarily stores data input / output during this time in a predetermined memory area of the RAM 104. The image memory 105 stores the image data output from the image processing unit 102. The print data and password transmitted from the client PC 107 are stored in an HDD (not shown).

  The operation panel 400 includes an integrated display unit 401 corresponding to the display unit of the present invention, and a key switch unit 402 such as a numeric keypad or a start key. The integrated display unit 401 includes a display unit 401a such as a liquid crystal display (LCD), an area sensor unit that can mainly read a small size document such as an ID card such as a business card and a license, and an L version photo. 401b and a wireless IC tag reader 401c capable of reading wireless IC tag information are integrally provided. The area sensor unit 401b can identify the coordinate position of the finger on the screen by detecting the reflected light from the user's finger. For this reason, the area sensor unit 401b can also be used as an optical touch panel. The display unit 401a displays the status of the image forming apparatus 100, available paper size, copy magnification, and the like.

  A NIC (Network Interface Card) 106 is a communication means for communicating with the client PC 107 via a communication line. The image forming apparatus 100 performs printing based on print data transferred from the client PC 107 or transfers image data obtained by the document reading unit 300 to the client PC 107 via the NIC 106.

  The image forming unit 200 is controlled by the sub CPU 203 and includes a fixing unit 201, a driver 202, and an A / D converter 204. The fixing unit 201 corresponds to the fixing unit 7 shown in FIG. 1, and includes a fixing heater 201a and a fixing temperature sensor 201b. The fixing temperature sensor 201 b detects the temperature of the heating (heat) roller 71 in the fixing unit 7 of FIG. 1 and outputs temperature data to the sub CPU 203.

  The main CPU 101 transmits a predetermined warm-up command to the sub CPU 203 as the first return process. When the sub CPU 203 receives a predetermined warm-up command from the main CPU 101, the sub CPU 203 energizes the fixing heater 201a and determines the surface temperature of the heating roller 71 heated by the fixing heater 201a based on the temperature information obtained from the fixing temperature sensor 201b. The energization of the fixing heater 201a is controlled so as to be constant at a predetermined temperature. When the surface of the heating roller 71 reaches a predetermined temperature, the sub CPU 203 determines that the processable state (ready state) has been reached, and notifies the main CPU 101 of it.

  The document reading unit 300 is controlled by the sub CPU 303 and includes a light source lamp unit 301, a driver 302, and an A / D converter 304. The light source lamp unit 301 corresponds to the exposure unit 1 shown in FIG. 1, and includes a light source lamp 301a and a light amount sensor 301b. The light amount sensor 301 b detects the amount of light emitted from the light source lamp 301 a of the light source lamp unit 301 and inputs light amount data to the sub CPU 303.

  The main CPU 101 transmits a predetermined warm-up command to the sub CPU 303 as the second return process. When receiving a predetermined warm-up command from the main CPU 101, the sub CPU 303 energizes the light source lamp 301a, and based on the light amount information obtained from the light amount sensor 301b, the light source so that the light amount of the light source lamp 301a is fixed to the predetermined light amount. The energization of the lamp 301a is controlled. When the light amount of the light source lamp 301a reaches a predetermined light amount, the sub CPU 303 determines that the processable state (ready state) has been reached and notifies the main CPU 101 of it.

  The driver 302 drives the light source lamp 301 a of the light source lamp unit 301 based on the control data output from the sub CPU 303. The driver 202 drives the fixing heater 201 a built in the heating roller of the fixing unit 201 based on the control data output from the sub CPU 203.

  In addition to the above, the sub CPU 203 and the sub CPU 303 are connected to a number of input / output devices that operate during document reading processing and image forming processing, such as motors, clutches, solenoids, and sensors in the image forming unit and document reading unit. . The sub CPU 203 and the sub CPU 303 read sensor detection data at a predetermined timing during document reading processing and image formation processing, and drive a motor or the like according to the detection data.

  The image forming apparatus 100 is connected to a coin vendor 108 corresponding to the coin-type billing apparatus of the present invention. The coin vendor 108 collects a copy fee from the user. For example, in the case of 1 copy / 10 yen for black and white copy, if 100 yen is inserted, 10 copies can be copied.

  The main feature of the present invention is that reading of a document and reading of a wireless IC tag are performed on a display screen of an operation panel, thereby preventing forgetting to remove a document and automatically switching between a document reading mode and a wireless IC tag reading mode. The electronic money function using the wireless IC tag can be used. As a configuration for this, the document reading apparatus includes an integrated display unit 401 integrally provided with an area sensor unit 401b and a wireless IC tag reader 401c, and a main CPU 101 that controls screen display of the integrated display unit 401. The area sensor unit 401b detects the reflected light from the object placed on the screen of the integrated display unit 401, and the wireless IC tag reader 401c detects that the wireless IC tag is close to the screen.

  When the main CPU 101 detects that the wireless IC tag is close to the screen, the main CPU 101 switches to the wireless IC tag reading mode in which information of the wireless IC tag is read by the wireless IC tag reader 401c. The main CPU 101 determines whether or not the object is a document based on the area of the reflected light from the object detected by the area sensor unit 401b. If the object is determined to be a document, the main CPU 101 uses the area sensor unit 401b. It is possible to switch to a document reading mode for reading a document placed on the screen. Here, the wireless IC tag may be read when the wireless IC tag approaches in a state where the document reading mode is set by a user operation.

  FIG. 3 is a diagram illustrating a configuration example of an integrated display unit and a wireless IC tag card according to the present invention. FIG. 3A is a diagram illustrating an example of the structure of the integrated display portion 401. In the figure, 41 is a liquid crystal layer, 42 is an optical sensor, 43 is a light shielding layer, 44 is a backlight source, and 45 is an antenna of the wireless IC tag reader 401c. The area sensor unit 401 b includes a plurality of minute optical sensors 42 that are equally arranged on the XY plane, and is positioned between the liquid crystal layer 41 of the display unit 401 a and the backlight light source 44. For example, a photodiode is used for the optical sensor 42. Further, a light shielding layer 43 is formed on the optical sensor 42 so that the light from the backlight light source 44 does not enter. When an object comes into contact with the surface of the liquid crystal layer 41, the light from the backlight light source 44 is reflected by the contacted object and enters the optical sensor 42, whereby the image shape of the object is output as image data. In addition, an antenna 45 of the wireless IC tag reader 401c is provided on the lower surface of the backlight light source 44, thereby enabling wireless communication with the wireless IC tag.

  In FIG. 3A, the optical sensor and the backlight light source are arranged by, for example, a known method (Japanese Patent Laid-Open No. 2004-153327, etc.). The area of the photosensor is very small, and actually a sufficiently wide gap is formed between the photosensors. Since the backlight light is irradiated and diffused through the gap, the liquid crystal display is not affected even when the optical sensor is arranged as shown in FIG.

  FIG. 3B is a block diagram illustrating a configuration example of a wireless IC tag card. In the figure, reference numeral 46 denotes the wireless IC tag card. The wireless IC tag card 46 includes a card-side antenna 46a, a card-side CPU 46b, and a card-side memory 46c. The card side antenna 46a communicates with the antenna 45 of the wireless IC tag reader 401c on the side of the document reading device by electromagnetic waves. The card-side CPU 46b and the card-side memory 46c operate using the electromagnetic waves received by the card-side antenna 46a as supply power, and transmit information stored in the card-side memory 46c to the document reading device, or information from the document reading device. Is stored in the card-side memory 46c. The card side memory 46c stores identification information d1 and type information d2. The identification information d1 is ID information given one-on-one to the user who holds the wireless IC tag card 109, and the type information d2 indicates the type of card. This type information d2 indicates that, for example, the wireless IC tag card 46 is a card having an electronic money function and is used in a specific settlement system.

FIG. 4 is a diagram showing an external appearance of a document reading apparatus provided with an integrated display unit 401 that is a feature of the present invention. In the figure, the document reading apparatus has an operation panel 400 provided with an integrated display unit 401. In the case of the example shown in FIG. 4A, since the document 47 does not have a wireless IC tag, the document reader has a small-size document 47 such as a license or a business card set on the screen of the integrated display unit 401. Then, the document reading mode is switched, and the document 47 is read by the area sensor unit 401b.
In the example shown in FIG. 4B, since the wireless IC tag card 46 has a wireless IC tag, when the wireless IC tag card 46 approaches the screen of the integrated display unit 401, The wireless IC tag reading mode is switched, and the wireless IC tag reader 401c reads information on the wireless IC tag of the wireless IC tag card 46. Note that the form of the wireless IC tag is not limited to the card shape shown in the figure, and may be, for example, a portable terminal with an electronic money function including the wireless IC tag.

FIG. 5 is a diagram illustrating an example of a detailed configuration of the operation panel 400. FIG. 5A is a diagram showing an overall outline of the operation panel 400. FIG. 5B is a diagram illustrating an example of an initial screen of the integrated display unit 401. In the figure, P indicates a document positioning index point.
In FIG. 5A, the operation panel 400 includes an integrated display portion 401 and a key switch portion 402. The user can start reading the document 47 by setting the document 47 with reference to the point P on the screen of the integrated display unit 401 and pressing the “start key” of the key switch unit 402.

  In FIG. 5B, the main CPU 101 sets a reading area 411 for reading a document and an operation area for displaying a menu tab 410 of the document reading device on the screen of the integrated display unit 401. This example shows the case where the reading area is displayed on the display screen in advance. When the user wants to read the original 47 using the integrated display unit 401, the original 47 is placed in the reading area 411 where “small size original reading area” is displayed. A menu tab 410 is displayed below the reading area 411, and setting items of operation keys are displayed on the menu tab 410 in a state where the tab can be switched. On the “Detail Settings” tab, post-processing, single-sided / double-sided, aggregation (Nin1), and image position are set.

  FIG. 6 is a diagram illustrating a screen example of the integrated display unit 401 when the area sensor unit 401b reads the document 47. 6A shows an example of a screen immediately after a small-size document is placed, and FIG. 6B shows an example of a screen after the start key is pressed and reading processing is executed in the state of FIG. 6A. FIG. 6C shows an example of the screen after the Nin1 key is pressed in the state of FIG. 6B. In the figure, 412 is a preview area, 413 is a paper outline, 414 is a preview image, 415 is a Nin1 key, and 416 is a reading completion key.

When the user places the document 47 on the reading area 411 shown in FIG. 5B, the area sensor unit 401b of the integrated display unit 401 detects this and shifts to the screen display shown in FIG. 6A. .
In FIG. 6A, when the document reading apparatus detects that the document 47 is placed on the screen, it shifts to the “small size document reading mode”. When the mode is switched, the display unit 401a displays a display indicating that the “small size original reading mode” has been set, for example, a message “Reading a small size original when the start button is turned on”. As the mode is switched, the item on the right of the menu tab 410 is changed from “detail setting” to “image position”.

  In FIG. 6B, for example, a preview area 412 is displayed in the operation area including the menu tab 410, and a paper outline 413 (A4 size here) and a thumbnail image 414 of the document 47 are displayed in the preview area 412. Is displayed. The thumbnail image 414 is displayed after the reading of the document 47 is completed. This document reading process is executed when the document 47 is set on the screen and the “start key” on the operation panel 400 is pressed.

  As shown in FIG. 6A, when the user presses the “start key” of the key switch unit 402 provided on the operation panel 400 with the document 47 set on the screen, the area sensor unit 401b causes the document 47 to be pressed. The reading process is started. As shown in FIG. 6B, the thumbnail image 414 is preview-displayed in the preview area 412 of the image data of the document 47 read by the area sensor unit 401b. Note that the A4 size is selected for the paper outline 413, and a thumbnail image 414 is displayed at the center of the paper outline rectangle.

  Here, the Nin1 key 415 is an operation key for confirming whether or not to switch to an aggregation (Nin1) mode for collecting a plurality of documents on one page. When the user presses the Nin1 key 415, the document reading apparatus waits for an additional document (including the back side of the document) to be placed. When the user sets an additional document and presses the “start key”, the area sensor unit 401 b reads the additional document, and the display unit 401 a displays the preview in the preview area 412. This process is repeated for the number of additional documents (N number). The state at this time is shown in FIG. Here, the Nin1 key 415 is displayed in gray to indicate the Nin1 mode.

  FIG. 7 is a diagram illustrating a screen example of the integrated display unit 401 when the wireless IC tag card 46 is read by the wireless IC tag reader 401c. When the user brings the wireless IC tag card 46 close to the integrated display unit 401 shown in FIG. 5B, the wireless IC tag reader 401c of the integrated display unit 401 detects this and shifts to the screen display shown in FIG. To do. In other words, when the document reading apparatus detects that the wireless IC tag card 46 is placed on or placed on the screen, it shifts to the “wireless IC tag reading mode”. When switching to this mode, the display 401a indicates that the “wireless IC tag reading mode” is set. For example, if the information of the wireless IC tag is electronic money information, “electronic money information has been detected. Message is displayed. "

  In the above description, when the wireless IC tag card 46 is placed on the screen of the integrated display unit 401, the main CPU 101 detects this by the area sensor unit 401b of the integrated display unit 401. Since the wireless IC tag reader 401c of the unit 401 detects the proximity of the wireless IC tag, the shift to the “small size document reading mode” is prohibited and the control is performed to shift to the “wireless IC tag reading mode”. The wireless IC tag reader 401c holds the wireless IC tag card 46 over the screen of the integrated display unit 401, that is, does not place the wireless IC tag card 46 on the screen but is separated from the screen by a predetermined distance. Since the proximity of the wireless IC tag can be detected, the wireless IC tag reading mode may be shifted to when the proximity is detected. As described above, when a wireless IC tag is detected when a certain object approaches or is placed on the screen of the integrated display unit 401, the wireless IC tag is switched to the “wireless IC tag reading mode”. When the placed object is card size and proximity of the wireless IC tag is not detected, the mode is switched to the “small size document reading mode”.

Further, when the information of the wireless IC tag is electronic money information, the document reading apparatus performs a charging process based on the electronic money information read by the wireless IC tag reader 401c.
For example, when the document reading apparatus is connected to and integrally configured with the image forming apparatus 100, it is possible to perform a billing process for expenses (such as a copy fee) using the image forming apparatus 100 using electronic money information. .
In addition, when the document reading apparatus is connected to the image forming apparatus 100 and the coin vendor 108, it is possible to perform the expense billing process using the image forming apparatus 100 by either the coin vendor 108 or the electronic money information. It becomes.

  In the above example, if a wireless IC tag is provided like the wireless IC tag card 46, the wireless IC tag card 46 is automatically switched to the “wireless IC tag reading mode”, but the wireless IC tag card 46 is not used as a wireless IC tag. There are cases where it is desired to read and print an image printed on a card surface. In order to cope with such a case, the user may be able to switch to the “small size original reading mode” by manual setting.

  Here, the main CPU 101 determines whether the object is a document or a user's finger based on the area of the reflected light from the object detected by the area sensor unit 401b. A user operation mode for accepting a user operation is switched by 401b. This will be described with reference to FIG. 8 below.

  FIG. 8 is a diagram illustrating an example of an image reading state when a change in reflected light is detected by the area sensor unit 401 b of the integrated display unit 401. The main CPU 101 calculates the maximum value (Xmax, Ymax) and minimum value (Xmin, Ymin) of the X coordinate and Y coordinate of the light receiving element for the light receiving element that detects the change in the reflected light of the area sensor unit 401b. FIG. 8A shows a state when the original 47 is read. FIG. 8B shows a state in which the user's finger 48 is in contact and the reflected light from the finger 48 is read.

  When the difference between the X coordinate (Xmax, Xmin) and the Y coordinate (Ymax, Ymin) of the light receiving element that has detected the reflected light is greater than the predetermined values Xth, Yth, the document reading device displays on the area sensor unit 401b. When it is determined that the document 47 is placed, the mode is switched to the “small size document reading mode”, and the area sensor unit 401 b of the integrated display unit 401 reads the document 47. On the other hand, when the difference between the X coordinates (Xmax, Xmin) and the difference between the Y coordinates (Ymax, Ymin) is smaller than the predetermined values Xth, Yth, it is determined that the finger 48 is placed, and a normal user makes a decision. Accepted as an operation input, a reading operation is performed from the document table / SPF.

  9 to 11 are flowcharts for explaining an example of processing by the main CPU 101 provided in the document reading apparatus of the present invention. 10 and 11 are a continuation of the flow of FIG. This example describes the case where a small-size document or a wireless IC tag card is placed on the screen of the integrated display unit 401, and is not limited to this.

  In FIG. 9, first, the main CPU 101 determines whether or not there is a key input to the key switch unit 402 (step S1). If there is a key input (YES in step S1), the process proceeds to step S22 in FIG. On the other hand, if there is no key input (NO in step S1), it is determined whether or not a change in reflected light is detected by any one of the light receiving elements of the area sensor unit 401b (step S2). Here, when there is a change in the output of reflected light, it is determined that there is a document placement or a touch operation. When a change in reflected light is detected (YES in step S2), it is determined whether or not a document is placed on the area sensor unit 401b (step S3). On the other hand, when a change in reflected light is not detected (NO in step S2), the process returns to step S1 and is repeated.

  The main CPU 101 determines that the document is placed on the area sensor unit 401b (in the case of YES in step S4), determines whether the proximity of the wireless IC tag is detected (step S5), and wireless IC When the proximity of the tag is detected (in the case of YES at step S5), the “wireless IC tag mode” is set, the display screen is changed as shown in FIG. S6). On the other hand, when it is determined that no document is placed on the area sensor unit 401b (NO in step S4), the process proceeds to step S13 in FIG.

  If the proximity of the wireless IC tag is not detected (NO in step S5), the main CPU 101 sets the “small size document reading mode” and the display screen display is shown in FIG. The document reading area is set (step S8). It should be noted that an area inside the rectangle whose diagonal is the maximum value and the minimum value (Xmax, Ymax, Xmin, Ymin) of the X and Y coordinates of the light receiving element that receives the reflected light is set as the document reading area.

  Next, the main CPU 101 reads the wireless IC tag information in step S6, determines whether or not the electronic money information is based on the type information d2 (step S9), and if not the electronic money information (NO in step S9). ), The process proceeds to step S7. In this example, in the case of an IC card other than electronic money (for example, a public transport boarding card), the “small size document reading mode” is assumed to read the image itself printed on the surface of the IC card. "Is set.

  Further, if the main CPU 101 is electronic money information (YES in step S9), the main CPU 101 accesses the electronic money service service providing server based on the identification information d1 to determine whether the user is an available user or not. Whether or not there is a balance is checked to determine whether or not billing is possible (step S10). When it is determined that charging is possible (YES in step S10), a setting for charging processing using electronic money (billing entry processing) is executed (step S11). When this billing entry process is executed, copying using electronic money is permitted. If it is determined that billing is not possible because there is no balance (in the case of NO in step S10), the integrated display unit 401 displays an error for notifying this (step S12). When the wireless IC tag is removed from the screen of the integrated display unit 401, the processing is stopped and the screen display is returned to the initial screen.

  In FIG. 10, when the main CPU 101 determines that the document is not placed on the area sensor unit 401b (NO in step S4), the main CPU 101 determines that the touch operation is performed, and the maximum value of the X coordinate and the Y coordinate. It is determined whether the center position of the minimum value (Xmax, Ymax, Xmin, Ymin) is included in the display area of the Nin1 key (step S13). Here, if the center position of the maximum and minimum values of the X and Y coordinates are included in the display area of the Nin1 key (YES in step S13), the Nin1 mode is set (step S14).

  On the other hand, when the center positions of the maximum and minimum values of the X and Y coordinates are not included in the display area of the Nin1 key (NO in step S13), the center of the maximum and minimum values of the X and Y coordinates. It is determined whether or not the position (Xmax, Ymax, Xmin, Ymin) is included in the display area of various setting keys (paper size, magnification, etc.) (step S15). Here, when the center positions of the maximum and minimum values of the X and Y coordinates are included in the display area of various setting keys (YES in step S15), various settings are performed (step S16).

  On the other hand, when the center positions of the maximum and minimum values of the X and Y coordinates are not included in the display area of the various setting keys (NO in step S15), the maximum and minimum values of the X and Y coordinates are set. It is determined whether or not the center position (Xmax, Ymax, Xmin, Ymin) is included in the display area of the reading completion key (step S17). Here, when the center position of the maximum value and the minimum value of the X coordinate and the Y coordinate is included in the display area of the reading completion key (in the case of YES in step S17), the accounting entry is made with the electronic money of the wireless IC tag card 46. It is determined whether or not processing has already been performed, or whether or not more coins than the amount required for one copy have been inserted into the coin vendor 108 (step S18). On the other hand, if the center positions of the maximum and minimum values of the X and Y coordinates are not included in the display area of the reading completion key (NO in step S17), the process returns to step S1 and the process is repeated.

  Next, when the main CPU 101 determines that the billing entry process or coin insertion has been performed (YES in step S18), the main CPU 101 prints out the original image read by the area sensor unit 401b (step S19). After the output, billing settlement processing is performed to complete the payment (step S20). On the other hand, when it is determined that the billing entry process or coin insertion has not been performed (NO in step S18), the integrated display unit 401 displays a warning to that effect (step S21).

  The copying process in the “small size original reading mode” starts when the reading completion key is turned on, and when the start key is turned on in the “small size original reading mode”, the original reading and the preview display are performed. .

  11, the main CPU 101 determines whether or not the start key is turned on (step S22) if YES in step S1 shown in FIG. 9 (when key input is present). If it is determined that the start key is turned on (YES in step S22), it is determined whether or not the “small size document reading mode” is set (step S23). If it is determined that the mode is the “small size document reading mode” (YES in step S23), the display of the screen portion corresponding to the document reading area set in step S8 is displayed in a uniform color, and the document is irradiated. The irradiated light is made uniform, the area sensor unit 401b reads the original in the original reading area set in step S8, and stores the read original image (step S24). Note that one uniform color needs to be displayed in white when performing color reading, but is not necessarily white when performing monochrome reading.

  Next, the main CPU 101 determines whether or not the Nin1 mode is set (step S25). If the Nin1 mode is set (YES in step S25), the document image read by the area sensor unit 401b. Is stored as an additional page in the document image stored so far (step S26). Then, as shown in FIG. 6B, the Nin1 key and the reading completion key are displayed, and the output state (preview) when printing is performed based on the read image data and the setting mode is displayed (step S27). ). For example, in the Nin1 mode, the total number of read document images is set as N number of Nin1 (number of documents), all the document images are combined on one sheet, and the combined image is displayed as a preview.

  On the other hand, if the Nin1 mode is not set (NO in step S25), the document image read by the area sensor unit 401b is stored (step S28), and the process proceeds to step S27. In this case, since it is not the Nin1 mode, if there is an already stored document image, the stored document image is cleared. Then, the process returns to step S1 of FIG.

  If the main CPU 101 determines that the mode is not the “small size document reading mode” (NO in step S23), the document sensor (not shown) indicates that the document is placed on the automatic document processing apparatus (SPF) 120. If detected in step S29, the document is conveyed and read using the automatic document processor 120. If not detected by the document sensor, the document on the document table 92 is read (step S29). Then, the read original image is printed out (step S30), and the process returns to step S1 in FIG. 9 to repeat the process.

  When the main CPU 101 determines that the start key is not turned on (NO in step S22), the main CPU 101 determines whether the clear key is turned on (step S31), and determines that the clear key is turned on. (In the case of YES at step S31), the setting is cleared (step S32). On the other hand, if it is determined that the clear key is not turned on (NO in step S31), the process returns to step S1 in FIG.

  In the above flow, processing is performed so that confirmation input for confirming Nin1 is accepted. However, in many cases where the Nin1 mode is used frequently, the license is often combined into one sheet. In the size original reading mode, the Nin1 mode may be set in advance.

  FIG. 12 is a flowchart for explaining an example of the document determination process in step S3 shown in FIG. In this example, a process for determining whether a document or a finger is detected when a change in reflected light is detected by the area sensor unit 401b will be described.

  The main CPU 101 calculates the maximum value (Xmax, Ymax) and minimum value (Xmin, Ymin) of the X coordinate and Y coordinate of the light receiving element for all the light receiving elements in which the change in the reflected light is detected (step S41). ). If both the difference between the X coordinates (Xmax, Xmin) and the difference between the Y coordinates (Ymax, Ymin) are larger than the threshold values Xth and Yth (in the case of YES in step S42), a document is placed on the area sensor unit 401b. Is determined to be placed (step S43), otherwise (NO in step S42), it is determined to be the user's finger (step S44). The threshold values Xth and Yth are set to a value approximately halfway between the minimum size considered as a document and the maximum size considered as the area of the tip of the finger, for example, Xth, Yth = 30 mm.

FIG. 13 is a flowchart for explaining an example of the accounting settlement process in step S20 shown in FIG.
The main CPU 101 determines whether or not billing entry processing using electronic money is performed by the wireless IC tag (step S51). If the billing entry processing is performed (in the case of YES), the main CPU 101 obtains from the wireless IC tag. Based on the identification information d1 to be deducted, a debiting process is performed from electronic money (step S52). In step S51, if the billing entry process is not performed (NO), the billing process is performed by the coin vendor 108 (step S53).

FIG. 14 is a diagram showing an example of an initial screen when a menu tab 410 including various operation keys is displayed without providing a reading area in advance.
In FIG. 14, the original reading apparatus displays only the menu tab 410 including various operation keys without providing the “small size original reading area” which is the reading area shown in FIG. 5B as the initial screen. To do. The menu tab 410 displays various operation keys of the document reading apparatus for each menu tab, and is displayed in a state where, for example, tabs such as paper size, magnification, post-processing, single side / double side, and image position can be switched. . In this example, since “A4” is selected as the paper size, the document 47 is printed out in A4 size.

By displaying as in this example, the display area of the menu tab 410 is not allocated to the “small size document reading area” that is the document reading area, and more menus can be displayed on the screen. It becomes possible.
When the area sensor unit 401b of the integrated display unit 401 detects that the document 47 is placed, the screen display shown in FIG. As described above, when the document 47 is placed on the screen, the document reading device detects the area where the document 47 is placed, and the operation area of the document reading apparatus other than the area where the document 47 is placed. Display as.

  FIG. 15 is a flowchart for explaining another example of processing by the main CPU 101 provided in the document reading apparatus of the present invention. The flow in FIG. 15 is obtained by changing a part of the flow in FIG. In this example, the process of step S70 is added to the flow of FIG. The processing in steps S61 to S69 in this example is the same as the processing in steps S1 to S9 in FIG. 9, and the processing in steps S71 to S73 is the same as the processing in steps S10 to S12 in FIG. For this reason, only the process of step S70 will be described.

  In step S70, when the wireless IC tag has a plurality of pieces of electronic money information, the main CPU 101 determines which of the plurality of pieces of electronic money information according to the position where the wireless IC tag is placed on the screen of the integrated display unit 401. You can choose either. That is, when a plurality of electronic money is installed in one wireless IC tag and there are a plurality of electronic money that can be used in the image forming apparatus, the user displays the icon shown in FIG. By looking at (electronic money selection icons 417a and 417b) and simply placing the wireless IC tag on the corresponding electronic money icon area, the user can easily select the electronic money that the user wants to use.

  FIG. 16 is a diagram illustrating an example of an initial screen of the integrated display unit 401 when a wireless IC tag card having a plurality of pieces of electronic money information is read. In the example of FIG. 16, if the user places the wireless IC tag on the electronic money selection icon 417a, the electronic money “XYZ Electric Money” can be used, and the wireless IC tag is placed on the electronic money selection icon 417b. If placed, electronic money called "AAA Online Cash" can be used. As described above, by selecting the wireless IC tag placed on the electronic money selection icons 417a and 417b displayed on the initial screen as the payment electronic money, a plurality of electronic money usable in the image forming apparatus is selected. It becomes possible to select easily. Note that on which icon the wireless IC tag is placed can be detected based on the position center of reflected light and the icon display position.

1 is a diagram illustrating a configuration example of an image forming apparatus according to an embodiment of the present invention. FIG. 2 is a block diagram illustrating a configuration example of the image forming apparatus illustrated in FIG. 1. It is a figure which shows an example of the structure of the integrated display part which concerns on this invention. 1 is a diagram illustrating an external appearance of a document reading apparatus provided with an integrated display unit that is a characteristic part of the present invention. FIG. It is a figure which shows an example of the detailed structure of an operation panel. It is a figure which shows the example of a screen of an integrated display part in the case of reading an original document with an area sensor part. It is a figure which shows the example of a screen of an integrated display part at the time of reading a wireless IC tag card with a wireless IC tag reader. It is a figure which shows an example of the reading state of an image when the change of reflected light is detected in the area sensor part of an integrated display part. It is a flowchart for demonstrating an example of the process by main CPU with which the original reading apparatus of this invention is provided. FIG. 10 is a flowchart for explaining an example of processing by the main CPU provided in the document reading apparatus of the present invention, and is a continuation of the flow of FIG. 9. FIG. 10 is a flowchart for explaining an example of processing by the main CPU provided in the document reading apparatus of the present invention, and is a continuation of the flow of FIG. 9. FIG. 10 is a flowchart for explaining an example of a document determination process in step S <b> 3 shown in FIG. 9. It is a flowchart for demonstrating an example of the payment settlement process of step S20 shown in FIG. It is a figure which shows an example of an initial screen at the time of displaying the menu tab containing various operation keys, without providing a reading area | region previously. It is a flowchart for demonstrating the other example of the process by main CPU with which the original reading apparatus of this invention is provided. It is a figure which shows the example of the initial screen of an integrated display part in the case of reading the radio | wireless IC tag card which has several electronic money information.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 ... Image forming apparatus 101 ... Main CPU (control part), 102 ... Image processing part, 103 ... ROM, 104 ... RAM, 105 ... Image memory, 106 ... NIC, 107 ... Client PC, 110 ... Main part of apparatus, 120 DESCRIPTION OF SYMBOLS Automatic document processing apparatus 200 ... Image forming unit 201 ... Fixing unit 201a ... Fixing heater 201b ... Fixing temperature sensor 202, 302 ... Driver 203, 303 ... Sub CPU 204, 304 ... A / D, 300 Document scanning unit 301 Light source lamp unit 301a Light source lamp 301b Light quantity sensor 400 Operation panel 401 Integrated display unit 401a Display unit 401b Area sensor unit 402 Key switch unit 410 ... menu tab, 411 ... reading area, 412 ... preview area, 413 ... paper outline 414 ... thumbnail images, 415 ... Nin1 key, 416 ... read complete key.

Claims (12)

A display unit in which an area sensor and a wireless IC tag reader are integrally provided, and reflected light from an object placed on the screen of the display unit is detected by the area sensor, and wireless IC is detected by the wireless IC tag reader. A control unit for detecting that the tag is close to the screen,
The control unit switches to a wireless IC tag reading mode for reading information of the wireless IC tag by the wireless IC tag reader when detecting that the wireless IC tag is close to the screen. The document reading apparatus according to claim 1, wherein the control unit is placed on the screen by the area sensor when the target is determined to be a document based on a region of reflected light from the target. Can switch to the original reading mode to read the original,
When it is determined that the object is a document and it is detected that the wireless IC tag is close to the screen, switching to the document reading mode is prohibited and switching to the wireless IC tag reading mode is performed. A document reader.   3. The document reading apparatus according to claim 1, wherein when the wireless IC tag information is electronic money information, a charging process is performed based on the electronic money information read by the wireless IC tag reader. A document reader.   4. The original reading apparatus according to claim 3, wherein the original reading apparatus is connected to an image forming apparatus, and charges for using the image forming apparatus are charged according to the electronic money information. apparatus.   4. The document reading device according to claim 3, wherein the document reading device is connected to an image forming device and a coin-type charging device, and charges processing using the image forming device is performed for the coin-type charging device or the coin-type charging device. An original reading apparatus, wherein the original reading is performed using any one of electronic money information.   4. The document reading apparatus according to claim 3, wherein when the wireless IC tag includes a plurality of pieces of electronic money information, the control unit determines whether the plurality of electronic money tags are on the screen according to a position where the wireless IC tag is placed. Any one of the electronic money information is selected.   3. The document reading apparatus according to claim 1, wherein the control unit determines whether or not the object is a user's finger based on an area of reflected light from the object, and determines that the object is a user's finger. In this case, the document reading apparatus is switched to a user operation mode in which a user operation is accepted by the area sensor.   3. The document reading apparatus according to claim 1, wherein the control unit includes a reading area for reading a document and an operation area for displaying operation keys of the document reading apparatus on the screen of the display unit. An original reading apparatus characterized by setting the above. The document reading device according to claim 1, further comprising an operation area for displaying operation keys of the document reading device on the screen of the display unit.
When the control unit determines that the object is a document, the control unit sets a region other than the region where the document is placed as the operation region.   10. The document reading device according to claim 8, wherein the control unit confirms whether or not to switch to an aggregation mode for collecting a plurality of documents on one page in an operation area of the document reading device. An original reading apparatus that displays operation keys.   10. The document reading apparatus according to claim 8, wherein the control unit displays a preview image of the document in an operation area of the document reading apparatus.   An image forming apparatus comprising the document reading device according to claim 1.

Images